县域农业生态经济系统的分析(Ⅱ)——功能和效率

Analysis on Agro-Ecolomic System at County Level(Ⅱ)---Function and Efficiency

对分别属于我国东部、北部、西部的常熟、公主岭、昌吉这三个县域农业生态经济系统的功能和效率进行了分析。通过分析表明,常熟市农业生态经济系统的能量流、物质流和价值流投入水平很高,但产投比较低,能量、物质和资金的利用效率不高;公主岭市农业生态经济系统能量和物质投入水平较高,产投比很高,能量、物质和资金的利用效率高;昌吉市农业生态经济系统的能量、物质流投入水平较低,但产出水平较高,因而产投比较高,能量、物质的利用效率较高。

In this paper,Three agro -ecolomic systems in Changshu,Gongzhuling an d Changji are evaluated respectively through analyses of function and efficiency.The analysis results showed that en ergy,material and funds inputs were very high in Changshu.Output to input ratios of energy,material and funds were rather low.Energy,utilization efficiencies of energy,material and funds were low.Energy and material input w ere rather high in Gongzhuling.Funds input was rather low,output to input ratios of energy,material and funds were very high.Ut ilization efficiencies of energy,material and funds were high.Energy and material inputs were rather low in Changji.But output to i nput ratios of energy,material were rather high.Utilization efficiencies of energy and material were high.